Micro-trenching blade



FIG. 1 is a perspective view of a micro-trenching blade showing our new design;

FIG. 2 is an enlarged top plan view thereof showing the position of a group of three cutting elements, the wavy broken lines shown representing the cutaway edges of the enlarged section forming no part of the claimed design; and,

FIG. 3 is an enlarged side view thereof showing the position of a group of five cutting elements.

The broken line showing of multiple circular elements and the eight areas around the perimeter of the claim is included for the purpose of illustrating portions of the micro-trenching blade and forms no part of the claimed design. 

The ornamental design for a micro-trenching blade, as shown and described. 